{"id":17058,"date":"2026-01-27T08:37:12","date_gmt":"2026-01-27T07:37:12","guid":{"rendered":"https:\/\/webhosting.de\/wordpress-browser-caching-fehler-serverboost\/"},"modified":"2026-01-27T08:37:12","modified_gmt":"2026-01-27T07:37:12","slug":"%e3%83%af%e3%83%bc%e3%83%89%e3%83%97%e3%83%ac%e3%82%b9-%e3%83%96%e3%83%a9%e3%82%a6%e3%82%b6-%e3%82%ad%e3%83%a3%e3%83%83%e3%82%b7%e3%83%a5-%e3%82%a8%e3%83%a9%e3%83%bc-%e3%82%b5%e3%83%bc%e3%83%90","status":"publish","type":"post","link":"https:\/\/webhosting.de\/ja\/wordpress-browser-caching-fehler-serverboost\/","title":{"rendered":"WordPress\u3068\u30d6\u30e9\u30a6\u30b6\u306e\u30ad\u30e3\u30c3\u30b7\u30e5 - \u4e0d\u6b63\u78ba\u306a\u8a2d\u5b9a\u304c\u591a\u3044"},"content":{"rendered":"<p>WordPress \u30d6\u30e9\u30a6\u30b6\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u306f\u3001\u3057\u3070\u3057\u3070\u30ec\u30b9\u30dd\u30f3\u30b9\u306e\u4f4e\u4e0b\u3092\u5f15\u304d\u8d77\u3053\u3057\u307e\u3059\u3002 <strong>\u30ad\u30e3\u30c3\u30b7\u30e5\u30fb\u30d8\u30c3\u30c0<\/strong> \u304c\u6b63\u3057\u304f\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u306a\u3044\u304b\u3001\u307e\u3063\u305f\u304f\u5236\u5fa1\u3055\u308c\u3066\u3044\u306a\u3044\u3002\u5178\u578b\u7684\u306a\u8a2d\u5b9a\u30df\u30b9\u304c304\u306e\u4ee3\u308f\u308a\u306b200\u3092\u8fd4\u3059\u3053\u3068\u3001TTL\u304c\u6b20\u843d\u3057\u3066\u3044\u308b\u7406\u7531\u3001WordPress\u3067\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u6b63\u3057\u304f\u8a2d\u5b9a\u3059\u308b\u65b9\u6cd5\u3092\u7d39\u4ecb\u3059\u308b\u3002 <strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9<\/strong> \u30c8\u30ea\u30e0\u3002.<\/p>\n\n<h2>\u4e2d\u5fc3\u70b9<\/h2>\n\n<ul>\n  <li><strong>\u30ed\u30f3\u30b0TTL<\/strong> \u3092\u9759\u7684\u30a2\u30bb\u30c3\u30c8\u306b\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u4e0d\u8981\u306a\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u9632\u3050\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002.<\/li>\n  <li><strong>\u660e\u78ba\u306a\u5206\u96e2<\/strong> \u9759\u7684\u30d1\u30b9\u3068\u52d5\u7684\u30d1\u30b9\u304c\u7ba1\u7406\u8005\u3068\u30ed\u30b0\u30a4\u30f3\u3092\u4fdd\u8b77\u3059\u308b\u3002.<\/li>\n  <li><strong>\u4e00\u3064\u306e\u30b7\u30b9\u30c6\u30e0<\/strong> \u7af6\u5408\u3059\u308b\u30ad\u30e3\u30c3\u30b7\u30e5\u30fb\u30d7\u30e9\u30b0\u30a4\u30f3\u3092\u6df7\u305c\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002.<\/li>\n  <li><strong>\u30d8\u30c3\u30c0\u30fc\u306e\u30c1\u30a7\u30c3\u30af<\/strong> DevTools\u3068304\u306e\u30b9\u30c6\u30fc\u30bf\u30b9\u3092\u6301\u3064\u3002.<\/li>\n  <li><strong>\u30b5\u30fc\u30d0\u30fc\u30fb\u30ad\u30e3\u30c3\u30b7\u30f3\u30b0<\/strong> \u3068\u30d6\u30e9\u30a6\u30b6\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u524a\u9664\u3057\u307e\u3059\u3002.<\/li>\n<\/ul>\n\n<h2>WordPress\u306e\u30d6\u30e9\u30a6\u30b6\u30fb\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u4ed5\u7d44\u307f<\/h2>\n\n<p>\u30d6\u30e9\u30a6\u30b6\u306f\u9759\u7684\u30d5\u30a1\u30a4\u30eb\u3092\u30ed\u30fc\u30ab\u30eb\u306b\u4fdd\u5b58\u3059\u308b\u305f\u3081\u3001\u518d\u8aad\u307f\u8fbc\u307f\u306e\u624b\u9593\u304c\u7701\u3051\u308b\u3002 <strong>HTTP\u30ea\u30af\u30a8\u30b9\u30c8<\/strong>. .2\u56de\u76ee\u306e\u8a2a\u554f\u3067\u306f\u3001\u753b\u50cf\u3001CSS\u3001JS\u3092\u30ed\u30fc\u30ab\u30eb\u30e1\u30e2\u30ea\u304b\u3089\u8aad\u307f\u8fbc\u307f\u3001\u5909\u66f4\u3092\u30b5\u30fc\u30d0\u30fc\u306b\u8981\u6c42\u3059\u308b\u3060\u3051\u3067\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30c7\u30fc\u30bf\u91cf\u304c\u524a\u6e1b\u3055\u308c\u3001\u30ec\u30b9\u30dd\u30f3\u30b9\u30bf\u30a4\u30e0\u304c\u77ed\u7e2e\u3055\u308c\u3001\u30b9\u30af\u30ed\u30fc\u30eb\u304c\u5373\u5ea7\u306b\u30ec\u30b9\u30dd\u30f3\u30b9\u3088\u304f\u611f\u3058\u3089\u308c\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002 <strong>\u6db2\u4f53<\/strong> \u306b\u3042\u308b\u3002\u660e\u78ba\u306a\u6307\u793a\u304c\u306a\u3044\u5834\u5408\u3001\u30d6\u30e9\u30a6\u30b6\u306f\u6bce\u56de\u5b8c\u5168\u306b\u30ea\u30ed\u30fc\u30c9\u3055\u308c\u3001\u30a4\u30f3\u30bf\u30e9\u30af\u30c6\u30a3\u30d6\u306b\u306a\u308b\u307e\u3067\u306b\u6642\u9593\u304c\u304b\u304b\u308a\u307e\u3059\u3002\u30ad\u30e3\u30c3\u30b7\u30e5\u30fb\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u30fb\u30d8\u30c3\u30c0\u3092\u6b63\u3057\u304f\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u3067\u3001304\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u304c\u53ef\u80fd\u306b\u306a\u308a\u3001\u5e2f\u57df\u5e45\u304c\u524a\u6e1b\u3055\u308c\u3001PHP\u3068\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u8ca0\u8377\u304c\u8efd\u6e1b\u3055\u308c\u307e\u3059\u3002\u79c1\u306f\u3053\u308c\u3092\u4e00\u8cab\u3057\u3066\u4f7f\u7528\u3057\u3066\u3044\u308b\u3002\u306a\u305c\u306a\u3089\u3001\u7279\u306b\u5b9a\u671f\u7684\u306a\u30e6\u30fc\u30b6\u30fc\u306f\u3001\u6301\u7d9a\u7684\u306a\u30ad\u30e3\u30c3\u30b7\u30e5\u304b\u3089\u6700\u3082\u6069\u6075\u3092\u53d7\u3051\u308b\u304b\u3089\u3060\u3002.<\/p>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2026\/01\/wordpress-caching-problem-8392.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>\u30b3\u30f3\u30d5\u30a3\u30ae\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u304c\u3057\u3070\u3057\u3070\u5931\u6557\u3059\u308b\u7406\u7531<\/h2>\n\n<p>\u591a\u304f\u306e\u30b5\u30a4\u30c8\u304c\u3001\u3068\u3093\u3067\u3082\u306a\u304f\u77ed\u3044\u9759\u7684\u30d5\u30a1\u30a4\u30eb\u3092\u914d\u4fe1\u3057\u3066\u3044\u308b\u3002 <strong>\u6700\u9ad8\u5e74\u9f62<\/strong>-\u5024\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002\u30d7\u30e9\u30b0\u30a4\u30f3\u306b\u3088\u3063\u3066\u306f\u3001\u304a\u4e92\u3044\u306e.htaccess\u3092\u4e0a\u66f8\u304d\u3057\u305f\u308a\u3001\u77db\u76fe\u3059\u308b\u30c7\u30a3\u30ec\u30af\u30c6\u30a3\u30d6\u3092\u8a2d\u5b9a\u3057\u305f\u308a\u3057\u307e\u3059\u3002\u30b5\u30a4\u30c8\u304c\u3057\u3070\u3057\u3070\u7ba1\u7406\u30d1\u30b9\u3092\u4e0d\u6b63\u306b\u30de\u30fc\u30af\u3057\u3001\/wp-admin\u3084\/wp-login.php\u306e\u30b3\u30f3\u30c6\u30f3\u30c4\u304c\u610f\u56f3\u305b\u305a\u30ad\u30e3\u30c3\u30b7\u30e5\u306b\u6b8b\u3063\u3066\u3057\u307e\u3044\u3001\u30bb\u30c3\u30b7\u30e7\u30f3\u304c\u885d\u7a81\u3059\u308b\u3002\u307e\u305f\u3001\u6700\u521d\u306e\u547c\u3073\u51fa\u3057\u3068\u7e70\u308a\u8fd4\u3057\u547c\u3073\u51fa\u3055\u308c\u308b\u547c\u3073\u51fa\u3057\u306e\u9055\u3044\u3082\u30c1\u30a7\u30c3\u30af\u3057\u3066\u3044\u307e\u3059\u3002 <a href=\"https:\/\/webhosting.de\/ja\/%e3%83%af%e3%83%bc%e3%83%89%e3%83%97%e3%83%ac%e3%82%b9-%e3%82%ad%e3%83%a3%e3%83%83%e3%82%b7%e3%83%a5-%e6%af%94%e8%bc%83-%e3%83%95%e3%82%a1%e3%83%bc%e3%82%b9%e3%83%88%e3%82%b3%e3%83%bc%e3%83%ab\/\">\u30d5\u30a1\u30fc\u30b9\u30c8\u30b3\u30fc\u30eb\u5bfe\u30ea\u30bf\u30fc\u30f3\u30b3\u30fc\u30eb<\/a>. .\u30d0\u30fc\u30b8\u30e7\u30f3\u7ba1\u7406\u306a\u3057\u3067\u30af\u30a8\u30ea\u6587\u5b57\u5217\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u30e1\u30e2\u30ea\u4e0a\u306b\u53e4\u3044\u30d5\u30a1\u30a4\u30eb\u304c\u4f5c\u6210\u3055\u308c\u3001\u6b21\u306e\u3088\u3046\u306a\u554f\u984c\u304c\u767a\u751f\u3057\u307e\u3059\u3002 <strong>\u5ec3\u308c\u305f<\/strong> \u30b9\u30bf\u30a4\u30eb.<\/p>\n\n<h2>WP\u30ad\u30e3\u30c3\u30b7\u30e5\u30fb\u30d8\u30c3\u30c0\u3092\u6b63\u3057\u304f\u8a2d\u5b9a\u3059\u308b<\/h2>\n\n<p>\u3067\u6301\u7d9a\u6642\u9593\u3092\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u3057\u3066\u3044\u308b\u3002 <strong>\u30ad\u30e3\u30c3\u30b7\u30e5\u30fb\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb<\/strong> \u3068Expires\u3092\u8a2d\u5b9a\u3057\u3001\u30de\u30eb\u30c1\u30b5\u30fc\u30d0\u74b0\u5883\u3067\u306f\u66d6\u6627\u306aETags\u3092\u907f\u3051\u3066\u3044\u307e\u3059\u3002Apache\u3067\u306f\u3001Expires\u306b\u610f\u5473\u306e\u3042\u308b\u5024\u3092\u8a2d\u5b9a\u3057\u3001\u30a2\u30bb\u30c3\u30c8\u306b\u306f \u201epublic, max-age \u201c\u3092\u5b9a\u7fa9\u3057\u3066\u3044\u307e\u3059\u3002Nginx\u306e\u5834\u5408\u306f\u3001add_header\u30c7\u30a3\u30ec\u30af\u30c6\u30a3\u30d6\u3092\u8ffd\u52a0\u3057\u3001\u30b3\u30f3\u30c6\u30f3\u30c4\u304c\u30d1\u30fc\u30bd\u30ca\u30e9\u30a4\u30ba\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u306f\u3001HTML\u306b\u77ed\u3044\u6642\u9593\u304b \u201eno-store \u201c\u3092\u4e0e\u3048\u308b\u3088\u3046\u306b\u3057\u3066\u3044\u307e\u3059\u3002\u307e\u305f\u3001\u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b5\u30fc\u3084\u30d7\u30ed\u30ad\u30b7\u304c\u3053\u308c\u3089\u306e\u5024\u3092\u4e00\u8cab\u3057\u3066\u751f\u6210\u3057\u306a\u3044\u5834\u5408\u306f\u3001ETag\u30d8\u30c3\u30c0\u30fc\u3092\u7121\u52b9\u306b\u3057\u307e\u3059\u3002\u3053\u306e\u3088\u3046\u306b\u3057\u3066\u3001\u30d6\u30e9\u30a6\u30b6\u306b\u660e\u78ba\u306a\u52d5\u4f5c\u3092\u5f37\u5236\u3057\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u4e8b\u614b\u3092\u56de\u907f\u3057\u3066\u3044\u308b\u3002 <strong>\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3<\/strong> \u30af\u30ea\u30c3\u30af\u3059\u308b\u305f\u3073\u306b.<\/p>\n\n<pre><code>ExpiresActive On\n  ExpiresByType image\/jpeg \"\u30a2\u30af\u30bb\u30b9\u30d7\u30e9\u30b9 1 \u5e74\"\n  ExpiresByType image\/png \"\u30a2\u30af\u30bb\u30b9\u30d7\u30e9\u30b9 1 \u5e74\"\n  ExpiresByType text\/css \"\u30a2\u30af\u30bb\u30b9\uff0b1\u30f6\u6708\"\n  ExpiresByType application\/javascript \"\u30a2\u30af\u30bb\u30b9\u30d7\u30e9\u30b91\u30f6\u6708\"\n\n\n \u306f\u6b21\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002\n  \u30d8\u30c3\u30c0\u30bb\u30c3\u30c8 Cache-Control \"public, max-age=31536000\" \"expr=%{CONTENT_TYPE} =~ m#^(image\/|font\/|application\/javascript)#\"\n  \u30d8\u30c3\u30c0\u30fc\u30bb\u30c3\u30c8 Cache-Control \"no-cache, no-store, must-revalidate\" \"expr=%{REQUEST_URI} =~ m#(wp-admin|wp-login.php)#\"\n  \u30d8\u30c3\u30c0\u304c ETag \u3092\u30a2\u30f3\u30bb\u30c3\u30c8\u3059\u308b\n&lt;\/IfModule<\/code><\/pre>\n\n<pre><code># Nginx\nlocation ~* .(jpg|jpeg|png|gif|ico|webp|avif|css|js|woff2?)$ {.\n    add_header Cache-Control \"public, max-age=31536000\"\uff1b\n}\nlocation ~* \/(wp-admin|wp-login.php)${\u3002\n    add_header Cache-Control \"no-store\"\uff1b\n}<\/code><\/pre>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2026\/01\/wordpress_caching_meeting_5823.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>\u65e5\u5e38\u751f\u6d3b\u306b\u304a\u3051\u308b\u62e1\u5f35\u30ad\u30e3\u30c3\u30b7\u30e5\u5236\u5fa1\u30c7\u30a3\u30ec\u30af\u30c6\u30a3\u30d6<\/h2>\n\n<p>max-age\u201e \u3068 \u201cno-store\u201e \u306b\u52a0\u3048\u3066\u3001\u6700\u65b0\u306e\u30c7\u30a3\u30ec\u30af\u30c6\u30a3\u30d6\u306f\u9855\u8457\u306a\u5b89\u5b9a\u6027\u3092\u4fdd\u8a3c\u3057\u307e\u3059\u3002\u201cimmutable\u201e \u306f\u3001\u30d5\u30a1\u30a4\u30eb\u540d\u304c\u5909\u308f\u3089\u306a\u3044\u9650\u308a\u30d5\u30a1\u30a4\u30eb\u304c\u5909\u66f4\u3055\u308c\u306a\u3044\u3053\u3068\u3092 \u30d6\u30e9\u30a6\u30b6\u306b\u77e5\u3089\u305b\u307e\u3059\u3002\u201cstale-while-revalidate\u201e \u306f\u3001\u30d0\u30c3\u30af\u30b0\u30e9\u30a6\u30f3\u30c9\u3067\u66f4\u65b0\u3057\u3066\u3044\u308b\u9593\u3001\u671f\u9650\u5207\u308c\u306e\u30b3\u30d4\u30fc\u3092\u914d\u4fe1\u3059\u308b\u3053\u3068\u3092\u8a31\u53ef\u3057\u307e\u3059\u3002\u201cstale-if-error \u201e\u306f\u3001Origin\u304c\u4e00\u6642\u7684\u306b\u30a8\u30e9\u30fc\u3092\u8fd4\u3057\u305f\u5834\u5408\u3001\u30b3\u30d4\u30fc\u3092\u6e96\u5099\u3057\u3066\u304a\u304d\u307e\u3059\u3002\u300cs-maxage\u300d\u306f\u30d7\u30ed\u30ad\u30b7\/CDN\u3092\u5bfe\u8c61\u3068\u3057\u3066\u304a\u308a\u3001\u300cmax-age\u300d\u4ee5\u5916\u306e\u5024\u3092\u53d6\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u307e\u305f\u91cd\u8981\u306a\u3053\u3068\u3068\u3057\u3066\u3001\u201cpublic \u201e\u306f\u5171\u6709\u30d7\u30ed\u30ad\u30b7\u3067\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u8a31\u53ef\u3057\u3001\u201cprivate \u201e\u306f\u30d6\u30e9\u30a6\u30b6\u306b\u5236\u9650\u3055\u308c\u307e\u3059\u3002\u300cno-cache \u201c\u306f \u201e\u30ad\u30e3\u30c3\u30b7\u30e5\u3057\u306a\u3044 \u201c\u3068\u3044\u3046\u610f\u5473\u3067\u306f\u306a\u304f\u3001\u201e\u30ad\u30e3\u30c3\u30b7\u30e5\u306f\u8a31\u53ef\u3059\u308b\u304c\u3001\u4f7f\u7528\u524d\u306b\u518d\u691c\u8a3c\u3059\u308b \u201c\u3068\u3044\u3046\u610f\u5473\u3067\u3059\u3002.<\/p>\n\n<pre><code># Apache 2.4 \u306e\u4f8b (\u30a2\u30bb\u30c3\u30c8\u3092\u3055\u3089\u306b\u5f37\u56fa\u306b\u30ad\u30e3\u30c3\u30b7\u30e5\u3059\u308b)\n \u306e\u4f8b\n  \u30d8\u30c3\u30c0\u30bb\u30c3\u30c8 Cache-Control \"public, max-age=31536000, immutable, stale-while-revalidate=86400, stale-if-error=259200\" \"expr=%{REQUEST_URI} =~ m#.(css|js|woff2?|png|jpe?g|webp|avif)$#\"\n  \u30d8\u30c3\u30c0\u30bb\u30c3\u30c8 Cache-Control \"no-cache, must-revalidate\" \"expr=%{CONTENT_TYPE} =~ m#^text\/html#\"\n&lt;\/IfModule<\/code><\/pre>\n\n<pre><code># Nginx \u306e\u4f8b (304\/Include \u30ea\u30c0\u30a4\u30ec\u30af\u30c8)\nlocation ~* .(css|js|woff2?|png|jpe?g|webp|avif)$ { .\n    add_header Cache-Control \"public, max-age=31536000, immutable, stale-while-revalidate=86400, stale-if-error=259200\" \u5e38\u306b\uff1b\n}\nlocation ~* .html$ {.\n    add_header Cache-Control \"no-cache, must-revalidate\" \u5e38\u6642\uff1b\n}<\/code><\/pre>\n\n<h2>\u30d5\u30a1\u30a4\u30eb\u30bf\u30a4\u30d7\u5225\u63a8\u5968\u30ad\u30e3\u30c3\u30b7\u30e5\u6642\u9593<\/h2>\n\n<p>\u7fd2\u6163\u3067\u306f\u306a\u304f\u3001\u5909\u5316\u306e\u983b\u5ea6\u306b\u5fdc\u3058\u3066\u6642\u9593\u3092\u9078\u3076\u3002 <strong>\u8cc7\u7523<\/strong> \u7d4c\u5e74\u5909\u5316\u306f\u5927\u304d\u304f\u7570\u306a\u308b\u3002\u753b\u50cf\u3001\u30ed\u30b4\u3001\u30a2\u30a4\u30b3\u30f3\u306f\u901a\u5e38\u3001\u9577\u3044\u9593\u6700\u65b0\u306e\u72b6\u614b\u306b\u4fdd\u305f\u308c\u308b\u304c\u3001CSS\/JS\u306f\u3088\u308a\u983b\u7e41\u306b\u66f4\u65b0\u3055\u308c\u308b\u3002\u30a6\u30a7\u30d6\u30d5\u30a9\u30f3\u30c8\u306f\u3081\u3063\u305f\u306b\u5909\u66f4\u3055\u308c\u306a\u3044\u304c\u3001\u4e00\u8cab\u3057\u305fCORS\u30d8\u30c3\u30c0\u30fc\u3092\u5fc5\u8981\u3068\u3059\u308b\u3002HTML\u306f\u591a\u304f\u306e\u5834\u5408\u3001\u52d5\u7684\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u30b3\u30f3\u30c6\u30ca\u3068\u3057\u3066\u6a5f\u80fd\u3059\u308b\u305f\u3081\u3001\u66f4\u65b0\u671f\u9593\u304c\u77ed\u3044\u304b\u3001\u518d\u691c\u8a3c\u3055\u308c\u308b\u3060\u3051\u3067\u3042\u308b\u3002API\u306b\u306f\u660e\u78ba\u306b\u5b9a\u7fa9\u3055\u308c\u305f\u30eb\u30fc\u30eb\u304c\u4e0e\u3048\u3089\u308c\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304cCORS\u30d8\u30c3\u30c0\u3092\u4f7f\u7528\u3057\u3066\u6b63\u3057\u304f\u52d5\u4f5c\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u3079\u304d\u3067\u3042\u308b\u3002 <strong>JSON<\/strong> \u3092\u907f\u3051\u308b\u3002.<\/p>\n\n<table>\n  <thead>\n    <tr>\n      <th>\u30d5\u30a1\u30a4\u30eb\u306e\u7a2e\u985e<\/th>\n      <th>\u30ad\u30e3\u30c3\u30b7\u30e5\u5236\u5fa1\u306e\u63a8\u5968<\/th>\n      <th>\u30d2\u30f3\u30c8<\/th>\n    <\/tr>\n  <\/thead>\n  <tbody>\n    <tr>\n      <td>\u753b\u50cf (jpg\/png\/webp\/avif\/svg)<\/td>\n      <td>\u516c\u958b, max-age=31536000<\/td>\n      <td>\u30d5\u30a1\u30a4\u30eb\u30fb\u30d0\u30fc\u30b8\u30e7\u30cb\u30f3\u30b0\u306b\u3088\u308b\u5e74\u6b21\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u4f7f\u7528<\/td>\n    <\/tr>\n    <tr>\n      <td>CSS\/JS<\/td>\n      <td>\u516c\u958b, max-age=2592000<\/td>\n      <td>\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u306e\u305f\u3081\u306b\u30d5\u30a1\u30a4\u30eb\u540d\u306b\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u4ed8\u52a0\u3059\u308b<\/td>\n    <\/tr>\n    <tr>\n      <td>\u30d5\u30a9\u30f3\u30c8 (woff\/woff2)<\/td>\n      <td>\u516c\u958b, max-age=31536000<\/td>\n      <td>Access-Control-Allow-Origin\u3092\u6b63\u3057\u304f\u8a2d\u5b9a\u3059\u308b<\/td>\n    <\/tr>\n    <tr>\n      <td>HTML (\u30da\u30fc\u30b8)<\/td>\n      <td>no-cache, must-revalidate \u307e\u305f\u306f short max-age<\/td>\n      <td>\u52d5\u7684\u30b3\u30f3\u30c6\u30f3\u30c4\u306b\u306f\u7d30\u5fc3\u306e\u6ce8\u610f\u3092<\/td>\n    <\/tr>\n    <tr>\n      <td>REST API (json)<\/td>\n      <td>\u975e\u516c\u958b, max-age=0, \u5fc5\u305a\u518d\u691c\u8a3c\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/td>\n      <td>\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u306b\u3088\u3063\u3066\u533a\u5225\u3059\u308b<\/td>\n    <\/tr>\n  <\/tbody>\n<\/table>\n\n<h2>\u30d7\u30e9\u30b0\u30a4\u30f3\u3068\u306e\u7af6\u5408\u3092\u907f\u3051\u308b<\/h2>\n\n<p>\u79c1\u304c\u4f7f\u3046\u306e\u306f\u305b\u3044\u305c\u3044 <strong>\u30ad\u30e3\u30c3\u30b7\u30e5\u30fb\u30d7\u30e9\u30b0\u30a4\u30f3<\/strong> \u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u304c\u3059\u3067\u306b\u30b5\u30fc\u30d0\u30fc\u30ec\u30d9\u30eb\u3067\u30eb\u30fc\u30eb\u3092\u6307\u5b9a\u3057\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002W3 Total Cache\u3068WP Super Cache\u306e\u3088\u3046\u306a\u7d44\u307f\u5408\u308f\u305b\u306f\u3001\u3057\u3070\u3057\u3070\u91cd\u8907\u3057\u305f\u30c7\u30a3\u30ec\u30af\u30c6\u30a3\u30d6\u3092\u4f5c\u6210\u3057\u3001\u304a\u4e92\u3044\u3092\u6253\u3061\u6d88\u3057\u5408\u3046\u3002WP Rocket\u306f\u8fc5\u901f\u306a\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u3092\u63d0\u4f9b\u3059\u308b\u304c\u3001\u30c0\u30a4\u30ca\u30df\u30c3\u30af\u30d1\u30b9\u3068e\u30b3\u30de\u30fc\u30b9\u306b\u5bfe\u3059\u308b\u660e\u78ba\u306a\u9664\u5916\u304c\u5fc5\u8981\u3067\u3042\u308b\u3002\u3044\u305a\u308c\u306b\u305b\u3088\u3001\u975e\u8ad6\u7406\u7684\u306a\u30d8\u30c3\u30c0\u30fc\u3092\u8a8d\u8b58\u3059\u308b\u305f\u3081\u306b\u3001\u4fdd\u5b58\u5f8c\u306b\u751f\u6210\u3055\u308c\u305f.htaccess\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b\u3002\u305d\u3057\u3066\u3001\u30c1\u30a7\u30c3\u30af\u30a2\u30a6\u30c8\u3001\u30ed\u30b0\u30a4\u30f3\u3001\u30d1\u30fc\u30bd\u30ca\u30e9\u30a4\u30ba\u3055\u308c\u305f\u30c0\u30c3\u30b7\u30e5\u30dc\u30fc\u30c9\u306a\u3069\u306e\u91cd\u8981\u306a\u30da\u30fc\u30b8\u304c\u6b63\u3057\u3044\u304b\u3069\u3046\u304b\u3092\u30c6\u30b9\u30c8\u3057\u307e\u3059\u3002 <strong>\u30d0\u30a4\u30d1\u30b9<\/strong>.<\/p>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2026\/01\/wordpress-browser-caching-fehler-9274.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>\u30ad\u30e3\u30c3\u30b7\u30e5\u3068\u30af\u30c3\u30ad\u30fc\uff1a\u30ed\u30b0\u30a4\u30f3\u30e6\u30fc\u30b6\u30fc\u3001WooCommerce\u3001\u30bb\u30c3\u30b7\u30e7\u30f3<\/h2>\n\n<p>\u30ed\u30b0\u30a4\u30f3\u30e6\u30fc\u30b6\u30fc\u7528\u306eHTML\u3092\u30d1\u30d6\u30ea\u30c3\u30af\u30ad\u30e3\u30c3\u30b7\u30e5\u306b\u4fdd\u5b58\u3057\u3066\u306f\u3044\u3051\u307e\u305b\u3093\u3002WordPress\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30af\u30c3\u30ad\u30fc\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002 <code>\u30ef\u30fc\u30c9\u30d7\u30ec\u30b9_\u30ed\u30b0\u30a4\u30f3<\/code>, WooCommerce\u306e\u88dc\u8db3 <code>woocommerce_items_in_cart<\/code>, <code>wp_woocommerce_session_<\/code> \u306a\u3069\u304c\u3042\u308b\u3002\u305d\u306e\u4ee3\u308f\u308a\u306b <em>\u5909\u6570: \u30af\u30c3\u30ad\u30fc<\/em> \u3053\u306e\u3088\u3046\u306a\u30ea\u30af\u30a8\u30b9\u30c8\u306b\u5bfe\u3057\u3066\u306f\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u5b8c\u5168\u306b\u30d0\u30a4\u30d1\u30b9\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30c1\u30a7\u30c3\u30af\u30a2\u30a6\u30c8\u30d7\u30ed\u30bb\u30b9\u304c\u5b89\u5b9a\u3057\u3001\u30d1\u30fc\u30bd\u30ca\u30e9\u30a4\u30ba\u3055\u308c\u305f\u30a8\u30ea\u30a2\u304c\u6b63\u3057\u304f\u4fdd\u305f\u308c\u307e\u3059\u3002\u307e\u305f\u3001\u30af\u30c3\u30ad\u30fc\u304c\u8a8d\u8b58\u3055\u308c\u305f\u3068\u304d\u306b\u3001\u3088\u308a\u5236\u9650\u7684\u306a\u30d8\u30c3\u30c0\u30fc\u3092\u8a2d\u5b9a\u3059\u308b\u30b5\u30fc\u30d0\u30fc\u5074\u306e\u30eb\u30fc\u30eb\u3082\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n<pre><code># Apache: \u30af\u30c3\u30ad\u30fc\u3092\u8a8d\u8b58\u3057\u3066\u30d0\u30a4\u30d1\u30b9\u30d8\u30c3\u30c0\u3092\u8a2d\u5b9a\u3059\u308b\n \u306b\n  SetEnvIfNoCase Cookie \"wordpress_logged_in_|woocommerce_items_in_cart|wp_woocommerce_session\" has_session\n  \u30d8\u30c3\u30c0\u30fc\u30bb\u30c3\u30c8 Cache-Control \"private, no-store\" env=has_session\n&lt;\/IfModule<\/code><\/pre>\n\n<pre><code># Nginx: \u30af\u30c3\u30ad\u30fc\u30d9\u30fc\u30b9\u306e\u30d0\u30a4\u30d1\u30b9\nif ($http_cookie ~* \"(wordpress_logged_in|woocommerce_items_in_cart|wp_woocommerce_session)\"){\n    add_header Cache-Control \"private, no-store\" \u5e38\u306b\uff1b\n}<\/code><\/pre>\n\n<p>\u591a\u304f\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u30d7\u30e9\u30b0\u30a4\u30f3\u306f\u3053\u306e\u305f\u3081\u306e\u30c1\u30a7\u30c3\u30af\u30dc\u30c3\u30af\u30b9\u3092\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\uff08WooCommerce\/Cart\/Exclude checkout\uff09\u3002\u91cd\u8981: Nonces (<code>_wpnonce\uff08\u30ef\u30d7\u30ce\u30f3\u30b9<\/code>)\u306e\u30d5\u30a9\u30fc\u30e0\u3068Heartbeat API\u304c\u983b\u7e41\u306b\u5909\u66f4\u3055\u308c\u307e\u3059\u3002\u79c1\u306f\u3001nonces\u3092\u542b\u3080\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u306eHTML\u304c\u6c38\u4e45\u306b\u30ad\u30e3\u30c3\u30b7\u30e5\u3055\u308c\u306a\u3044\u304b\u3001\u201eno-cache, must-revalidate \u201c\u3067\u52d5\u4f5c\u3059\u308b\u3088\u3046\u306b\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n<h2>HTML\u306e\u6a19\u7684\u6cbb\u7642\uff1a\u500b\u5225\u6cbb\u7642\u3068\u4e00\u822c\u6cbb\u7642<\/h2>\n\n<p>\u3059\u3079\u3066\u306e\u30da\u30fc\u30b8\u304c\u540c\u3058\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u8a18\u4e8b\u3001\u30e9\u30f3\u30c7\u30a3\u30f3\u30b0\u30da\u30fc\u30b8\u3001\u30ea\u30fc\u30ac\u30eb\u30da\u30fc\u30b8\u306f\u3001\u77ed\u3044TTL\u307e\u305f\u306f\u518d\u691c\u8a3c\u3067\u30ad\u30e3\u30c3\u30b7\u30e5\u3067\u304d\u308b\u3053\u3068\u304c\u591a\u3044\u3002\u30a2\u30fc\u30ab\u30a4\u30d6\u3001\u691c\u7d22\u30da\u30fc\u30b8\u3001\u30c0\u30c3\u30b7\u30e5\u30dc\u30fc\u30c9\u3001\u30a2\u30ab\u30a6\u30f3\u30c8\u30a8\u30ea\u30a2\u3001\u30c1\u30a7\u30c3\u30af\u30a2\u30a6\u30c8\u306f\u52d5\u7684\u306a\u307e\u307e\u3067\u3059\u3002\u30da\u30fc\u30b8\u30ad\u30e3\u30c3\u30b7\u30e5\u304c\u95a2\u4fc2\u3059\u308b\u5834\u5408\u3001\u79c1\u306f\u6b21\u306e\u7fd2\u6163\u3092\u5b88\u3063\u3066\u3044\u307e\u3059\uff1a\u30af\u30c3\u30ad\u30fc\u3092\u4f7f\u308f\u305a\u306b\u30d1\u30d6\u30ea\u30c3\u30afHTML\u306e\u307f\u3092\u30ad\u30e3\u30c3\u30b7\u30e5\u3057\u3001\u305d\u308c\u4ee5\u5916\u306f\u300c\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u300d\u307e\u305f\u306f\u300c\u30ce\u30fc\u30b9\u30c8\u30a2\u300d\u3067\u3059\u3002\u30de\u30a4\u30af\u30ed\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u30c6\u30b9\u30c8\u3059\u308b\u5834\u5408\uff08\u4f8b\uff1a\u30a2\u30af\u30bb\u30b9\u983b\u5ea6\u304c\u9ad8\u304f\u3001\u30d1\u30fc\u30bd\u30ca\u30e9\u30a4\u30ba\u3055\u308c\u3066\u3044\u306a\u3044\u30da\u30fc\u30b8\u306e30\uff5e60\u79d2\uff09\u3001\u30af\u30a8\u30ea\u30d1\u30e9\u30e1\u30fc\u30bf\u3068\u30bb\u30c3\u30b7\u30e7\u30f3\u306e\u53b3\u683c\u306a\u9664\u5916\u3092\u5b9a\u7fa9\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002WordPress\u306b\u306f <code>DONOTCACHEPAGE<\/code> \u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u304c\u30c8\u30ea\u30c3\u30ad\u30fc\u306a\u30da\u30fc\u30b8\u306b\u8a2d\u5b9a\u3067\u304d\u308b\u5b9a\u6570\u3067\u3001\u79c1\u306f\u30a8\u30e9\u30fc\u3092\u907f\u3051\u308b\u305f\u3081\u306b\u4e00\u8cab\u3057\u3066\u3053\u308c\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u3002.<\/p>\n\n<h2>\u30b5\u30fc\u30d0\u30fc\u30b5\u30a4\u30c9\u30fb\u30ad\u30e3\u30c3\u30b7\u30f3\u30b0\u3092\u8ce2\u304f\u7d44\u307f\u5408\u308f\u305b\u308b<\/h2>\n\n<p>\u30d6\u30e9\u30a6\u30b6\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u306f\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3067\u7d42\u308f\u308b\u304c\u3001\u79c1\u306f\u30b5\u30fc\u30d0\u30fc\u306b\u30da\u30fc\u30b8\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3001\u30aa\u30da\u30b3\u30fc\u30c9\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u6301\u305f\u305b\u3066\u3044\u308b\u3002 <strong>\u8ca0\u8377\u30d4\u30fc\u30af<\/strong>. .\u30da\u30fc\u30b8\u30ad\u30e3\u30c3\u30b7\u30e5\u306f\u3001PHP\u304c\u8d77\u52d5\u3059\u308b\u524d\u306b\u9759\u7684\u306aHTML\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002Redis\u3084Memcached\u306f\u3001\u7e70\u308a\u8fd4\u3055\u308c\u308b\u30ea\u30af\u30a8\u30b9\u30c8\u306e\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30af\u30a8\u30ea\u3092\u6e1b\u3089\u3057\u3001TTFB\u3092\u9855\u8457\u306b\u6e1b\u3089\u3057\u307e\u3059\u3002OPcache\u306f\u30b3\u30f3\u30d1\u30a4\u30eb\u6e08\u307f\u306ePHP\u30d0\u30a4\u30c8\u30b3\u30fc\u30c9\u30d5\u30e9\u30b0\u30e1\u30f3\u30c8\u3092\u63d0\u4f9b\u3057\u3001\u5b9f\u884c\u6642\u9593\u3092\u77ed\u7e2e\u3057\u307e\u3059\u3002\u6700\u7d42\u7684\u306b\u91cd\u8981\u306a\u306e\u306f\u3001\u30b5\u30fc\u30d0\u30fc\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u3068\u30d6\u30e9\u30a6\u30b6\u30fc\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u304c\u304d\u308c\u3044\u306b\u63a5\u7d9a\u3055\u308c\u30012\u56de\u76ee\u306e\u8a2a\u554f\u304c\u591a\u304b\u308c\u5c11\u306a\u304b\u308c\u6210\u529f\u3059\u308b\u3053\u3068\u3067\u3059\u3002 <strong>\u30a4\u30f3\u30b9\u30bf\u30f3\u30c8<\/strong> \u306e\u4f5c\u54c1\u3060\u3002.<\/p>\n\n<h2>\u30b5\u30d7\u30e9\u30a4\u30ba\u306a\u3057\u306eCDN\u7d71\u5408<\/h2>\n\n<p>CDN\u306f\u72ec\u81ea\u306eTTL\u30ed\u30b8\u30c3\u30af\u3092\u4f7f\u7528\u3057\u3001\u201es-maxage \u201c\u306b\u53cd\u5fdc\u3057\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u79c1\u306f\u30d6\u30e9\u30a6\u30b6\u7528\u306e \u201emax-age \u201c\u3068Edge\u7528\u306e \u201es-maxage \u201c\u3092\u660e\u78ba\u306b\u533a\u5225\u3057\u3066\u3044\u307e\u3059\u3002\u30c7\u30d7\u30ed\u30a4\u30e1\u30f3\u30c8\u304c\u4fdd\u7559\u4e2d\u306e\u5834\u5408\u306f\u3001\u201eCache Everything \u201c\u3092\u30b0\u30ed\u30fc\u30d0\u30eb\u306b\u7834\u68c4\u3059\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u5bfe\u8c61\u3092\u7d5e\u3063\u305f\u30d1\u30fc\u30b8\u3092\u30c8\u30ea\u30ac\u30fc\u3057\u307e\u3059\u3002\u91cd\u8981\uff1aEdge\u3067HTML\u3092\u30ad\u30e3\u30c3\u30b7\u30e5\u3059\u308b\u306e\u306f\u3001\u30af\u30c3\u30ad\u30fc\u304c\u95a2\u4fc2\u3057\u3066\u3044\u306a\u3044\u5834\u5408\u3060\u3051\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u305d\u3046\u3057\u306a\u3044\u3068\u3001\u30a8\u30c3\u30b8\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u304c\u30d1\u30fc\u30bd\u30ca\u30e9\u30a4\u30ba\u3055\u308c\u305f\u30ec\u30b9\u30dd\u30f3\u30b9\u3092\u5171\u6709\u3059\u308b\u305f\u3081\u3001\u6b63\u3057\u304f\u306a\u3044\u30b9\u30c6\u30fc\u30c8\u304c\u4f5c\u6210\u3055\u308c\u308b\u3002\u30a2\u30bb\u30c3\u30c8\u306b\u3064\u3044\u3066\u306f\u3001\u79c1\u306f\u9577\u3044TTL\u3092\u8a2d\u5b9a\u3057\u3001\u30d5\u30a1\u30a4\u30eb\u540d\u306e\u30d0\u30fc\u30b8\u30e7\u30cb\u30f3\u30b0\u306b\u4f9d\u5b58\u3057\u3066\u3044\u308b\u3002CDN\u306f\u30af\u30a8\u30ea\u30fc\u6587\u5b57\u5217\u3092\u7121\u8996\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002\u30d8\u30c3\u30c0\u30fc\u306e\u6b63\u898f\u5316\uff08\u4f59\u8a08\u306a \u201eVary \u201c\u5024\u3084\u4e00\u8cab\u6027\u306e\u3042\u308b \u201eContent-Type \u201c\u3092\u4f7f\u7528\u3057\u306a\u3044\uff09\u306f\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u30ad\u30fc\u306e\u80a5\u5927\u5316\u3092\u9632\u3050\u3002.<\/p>\n\n<h2>\u30b9\u30c6\u30c3\u30d7\u30d0\u30a4\u30b9\u30c6\u30c3\u30d7\uff1a\u30af\u30ea\u30fc\u30f3\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb<\/h2>\n\n<p>\u79c1\u306f\u307e\u305a\u30d7\u30e9\u30b0\u30a4\u30f3\u3092\u4f7f\u3044\u3001CSS\u3001JS\u3001\u753b\u50cf\u3001\u30d5\u30a9\u30f3\u30c8\u306e\u30d6\u30e9\u30a6\u30b6\u30fb\u30ad\u30e3\u30c3\u30b7\u30f3\u30b0\u3092\u6709\u52b9\u306b\u3057\u3066\u304b\u3089\u3001\u6b21\u306e\u3088\u3046\u306b\u3059\u308b\u3002 <strong>htaccess<\/strong> \u3092\u78ba\u5b9a\u3057\u307e\u3059\u3002\u305d\u3057\u3066\u3001\u9759\u7684\u30a2\u30bb\u30c3\u30c8\u306b\u306fmax-age\u3092\u9ad8\u304f\u8a2d\u5b9a\u3057\u3001HTML\u306b\u306f\u77ed\u3044\u6642\u9593\u304bno-cache\u30eb\u30fc\u30eb\u3092\u63d0\u4f9b\u3059\u308b\u3002\u8907\u6570\u306e\u30b5\u30fc\u30d0\u30fc\u304c\u95a2\u4fc2\u3057\u3066\u3044\u308b\u5834\u5408\u306fETags\u3092\u7121\u52b9\u306b\u3057\u3001Last-Modified\u30d7\u30e9\u30b9304\u306b\u983c\u308a\u307e\u3059\u3002 \u305d\u306e\u5f8c\u3001\u91cd\u8981\u306a\u30da\u30fc\u30b8\u304c\u9759\u7684\u30b3\u30d4\u30fc\u3068\u3057\u3066\u3059\u3050\u306b\u5229\u7528\u3067\u304d\u308b\u3088\u3046\u306b\u30d7\u30ea\u30ed\u30fc\u30c9\u3092\u958b\u59cb\u3057\u307e\u3059\u3002\u6700\u5f8c\u306b\u3001\u30b7\u30e7\u30c3\u30d7\u3001\u30ed\u30b0\u30a4\u30f3\u3001\u7ba1\u7406\u8005\u306e\u30d1\u30b9\u3092\u30c1\u30a7\u30c3\u30af\u3057\u3001\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30b3\u30f3\u30c6\u30f3\u30c4\u304c <strong>\u30d0\u30c3\u30d5\u30a1\u30e1\u30e2\u30ea<\/strong> \u571f\u5730\u3060\u3002.<\/p>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2026\/01\/wordpress-caching-office-2974.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>CLI\u3068\u30d8\u30c3\u30c0\u30fc\u30c1\u30a7\u30c3\u30af\u306b\u3088\u308b\u5b9f\u8df5\u7684\u306a\u8a3a\u65ad<\/h2>\n\n<p>DevTools\u306f\u5fc5\u9808\u3060\u304c\u3001\u79c1\u306fCLI\u30c6\u30b9\u30c8\u3092\u3088\u308a\u6df1\u304f\u884c\u3046\u3002A <code>curl -I<\/code> \u306f\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u306a\u3057\u306e\u30d8\u30c3\u30c0\u30fc\u3092\u793a\u3057\u3001\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3042\u308a\u306f <code>-H<\/code> \u79c1\u306f\u6761\u4ef6\u3092\u30b7\u30df\u30e5\u30ec\u30fc\u30c8\u3059\u308b\u3002\u4f8b\u3048\u3070\u3001\u518d\u691c\u8a3c\u304c\u672c\u5f53\u306b304\u3092\u8fd4\u3059\u304b\u3069\u3046\u304b\u3001\u30d7\u30ed\u30ad\u30b7\/CDN\u304b\u3089 \u201eAge \u201c\u304c\u5897\u52a0\u3059\u308b\u304b\u3069\u3046\u304b\u3001\u30af\u30c3\u30ad\u30fc\u304c\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u30aa\u30d5\u306b\u3059\u308b\u304b\u3069\u3046\u304b\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b\u3002.<\/p>\n\n<pre><code># \u8868\u793a\u30d8\u30c3\u30c0\ncurl -I https:\/\/example.com\/style.css\n\n#\u306e\u518d\u691c\u8a3c\u3092\u30b7\u30df\u30e5\u30ec\u30fc\u30c8\u3059\u308b\uff08If-Modified-Since\uff09\ncurl -I -H \"If-Modified-Since: Tue, 10 Jan 2023 10:00:00 GMT\" https:\/\/example.com\/style.css\n\n\u30af\u30c3\u30ad\u30fc\u3092\u4f7f\u3063\u305f#\u30c6\u30b9\u30c8\uff08\u5f37\u5236\u7684\u306b\u30d0\u30a4\u30d1\u30b9\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\uff09\ncurl -I -H \"Cookie: wordpress_logged_in_=1\" https:\/\/example.com\/<\/code><\/pre>\n\n<p>\u79c1\u306f\u3001\u30a2\u30bb\u30c3\u30c8\u306b\u306f\u9577\u3044\u300c\u30ad\u30e3\u30c3\u30b7\u30e5\u5236\u5fa1\u300d\u5024\u3001\u7406\u60f3\u7684\u306b\u306f\u300c\u4e0d\u5909\u300d\u3067\u3042\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u3002HTML\u306f \u201eno-cache \u201c\u304b\u77ed\u3044TTL\u304c\u5fc5\u8981\u3060\u3002\u305d\u308c\u3067\u3082304\u3067\u306f\u306a\u304f200\u304c\u8fd4\u3063\u3066\u304f\u308b\u5834\u5408\u306f\u3001ETags\/Last-Modified\u3092\u7121\u52b9\u306b\u3059\u308b\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u304c\u884c\u308f\u308c\u3066\u3044\u308b\u3053\u3068\u304c\u591a\u3044\u3002\u307e\u305f\u3001Nginx\u306e \u201eadd_header \u201c\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u306f200\u30ec\u30b9\u30dd\u30f3\u30b9\u306b\u3057\u304b\u9069\u7528\u3055\u308c\u307e\u305b\u3093\u3002\u201ealways \u201c\u3067\u306f304\u3068301\/302\u306e\u30d8\u30c3\u30c0\u30fc\u3082\u8a2d\u5b9a\u3057\u307e\u3059\u3002.<\/p>\n\n<h2>\u30d8\u30c3\u30c0\u30fc\u306e\u30c6\u30b9\u30c8\u3068\u691c\u8a3c<\/h2>\n\n<p>DevTools\u3092\u958b\u304d\u3001\u30da\u30fc\u30b8\u3092\u4e00\u5ea6\u30ea\u30ed\u30fc\u30c9\u3057\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u30af\u30ea\u30a2\u3057\u3066\u30ea\u30ed\u30fc\u30c9\u3059\u308b\u3068\u3001304\u5bfe304\u304c\u8868\u793a\u3055\u308c\u308b\u3002 <strong>200<\/strong> \u3092\u89b3\u5bdf\u3059\u308b\u3002\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30d1\u30cd\u30eb\u3067\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u3001\u5e74\u9f62\u3001ETag\/last modified\u3001\u30ec\u30b9\u30dd\u30f3\u30b9\u30b5\u30a4\u30ba\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b\u3002\u518d\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u306e\u4ee3\u308f\u308a\u306b\u76f4\u5e30\u304c\u307e\u3060\u3042\u308b\u5834\u5408\u306f\u3001\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3001\u30af\u30c3\u30ad\u30fc\u3001\u30af\u30a8\u30ea\u30fc\u6587\u5b57\u5217\u306e\u7af6\u5408\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b\u3002\u5384\u4ecb\u306a\u30b1\u30fc\u30b9\u3067\u306f\u3001\u30d8\u30c3\u30c0\u30fc\u306e\u843d\u3068\u3057\u7a74\u306b\u95a2\u3059\u308b\u3053\u306e\u8a18\u4e8b\u304c\u5f79\u306b\u7acb\u3064\uff1a <a href=\"https:\/\/webhosting.de\/ja\/http%e3%82%ad%e3%83%a3%e3%83%83%e3%82%b7%e3%83%a5%e3%83%98%e3%83%83%e3%83%80%e3%83%bc%e3%81%8c%e3%82%ad%e3%83%a3%e3%83%83%e3%82%b7%e3%83%a5%e3%82%92%e5%a6%a8%e5%ae%b3%e3%81%99%e3%82%8b-cachefix\/\">\u30ad\u30e3\u30c3\u30b7\u30e5\u30d8\u30c3\u30c0\u306e\u59a8\u5bb3<\/a>. .\u30eb\u30fc\u30eb\u306e\u5909\u66f4\u306f\u3057\u3070\u3057\u3070\u7121\u8a00\u3067\u884c\u308f\u308c\u308b\u305f\u3081\u3001\u30d7\u30e9\u30b0\u30a4\u30f3\u3092\u66f4\u65b0\u3059\u308b\u305f\u3073\u306b\u30c1\u30a7\u30c3\u30af\u3092\u7e70\u308a\u8fd4\u3059\u3002 <strong>\u30d1\u30b9<\/strong>.<\/p>\n\n<h2>\u30d0\u30fc\u30b8\u30e7\u30cb\u30f3\u30b0\u3001CDN\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u7834\u58ca<\/h2>\n\n<p>\u3092\u540a\u308b\u3059\u3002 <strong>\u30d0\u30fc\u30b8\u30e7\u30f3<\/strong> \u3092\u30d5\u30a1\u30a4\u30eb\u540d\uff08style.css?ver=23\u3067\u306f\u306a\u304fstyle.23.css\uff09\u306b\u5909\u66f4\u3059\u308b\u3053\u3068\u3067\u3001\u30d6\u30e9\u30a6\u30b6\u304c\u9577\u3044\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u4fdd\u6301\u3057\u306a\u304c\u3089\u3082\u3001\u65b0\u3057\u3044\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u5373\u5ea7\u306b\u8aad\u307f\u8fbc\u3080\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002CDN\u306f\u9759\u7684\u30d5\u30a1\u30a4\u30eb\u3092\u30b0\u30ed\u30fc\u30d0\u30eb\u306b\u914d\u4fe1\u3057\u3001\u30a8\u30c3\u30b8PoP\u306b\u72ec\u81ea\u306eTTL\u3092\u8a2d\u5b9a\u3057\u3001RTT\u3092\u5927\u5e45\u306b\u77ed\u7e2e\u3057\u307e\u3059\u3002\u91cd\u8981\uff1a\u30d1\u30fc\u30bd\u30ca\u30e9\u30a4\u30ba\u304c\u5fc5\u8981\u306a\u3044\u5834\u5408\u306e\u307fCDN\u3067HTML\u3092\u30ad\u30e3\u30c3\u30b7\u30e5\u3059\u308b\u3002\u30c7\u30d7\u30ed\u30a4\u6642\u306b\u30d0\u30fc\u30b8\u30e7\u30f3\u756a\u53f7\u3092\u81ea\u52d5\u7684\u306b\u5909\u66f4\u3057\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u53e4\u3044\u30b9\u30af\u30ea\u30d7\u30c8\u306b\u5f15\u3063\u304b\u304b\u308b\u3053\u3068\u304c\u306a\u3044\u3088\u3046\u306b\u3057\u3066\u3044\u308b\u3002\u3053\u306e\u3088\u3046\u306b\u3057\u3066\u3001\u30cf\u30fc\u30c9\u30d6\u30e9\u30a6\u30b6\u306eTTL\u3068\u30bb\u30ad\u30e5\u30a2\u306a <strong>\u30ad\u30e3\u30c3\u30b7\u30e5\u30fb\u30d0\u30b9\u30c8<\/strong>.<\/p>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2026\/01\/wordpress-browsercache-setup2093.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>WordPress\u306e\u30d3\u30eb\u30c9\u306b\u304a\u3051\u308b\u30af\u30ea\u30fc\u30f3\u306a\u30d0\u30fc\u30b8\u30e7\u30f3\u7ba1\u7406<\/h2>\n\n<p>\u6700\u3082\u4fe1\u983c\u3067\u304d\u308b\u306e\u306f\u3001\u30d5\u30a1\u30a4\u30eb\u540d\u306b\u30cf\u30c3\u30b7\u30e5\u3092\u66f8\u304d\u8fbc\u3080\u30d3\u30eb\u30c9\u30d1\u30a4\u30d7\u30e9\u30a4\u30f3\u3060\uff08\u4f8b\u3048\u3070. <code>app.9f3c.css<\/code>).WordPress\u306f\u3001\u3053\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u6b63\u78ba\u306b\u8aad\u307f\u8fbc\u307f\u307e\u3059\u3002\u30d6\u30e9\u30a6\u30b6\u306f\u3001\u300cimmutable\u300d\u306e\u304a\u304b\u3052\u3067\u3001\u3053\u306e\u30d5\u30a1\u30a4\u30eb\u30921\u5e74\u9593\u4fdd\u6301\u3067\u304d\u307e\u3059\u3002\u3082\u3057\u30d5\u30a1\u30a4\u30eb\u540d\u3092\u5909\u66f4\u3067\u304d\u306a\u3044\u5834\u5408\u306f\u3001\u30d0\u30fc\u30b8\u30e7\u30f3\u756a\u53f7\u3092\u30d5\u30a1\u30a4\u30eb\u306e\u65e5\u4ed8\u304b\u3089\u52d5\u7684\u306b\u8a2d\u5b9a\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30af\u30a8\u30ea\u30fc\u6587\u5b57\u5217\u306f\u6b63\u3057\u304f\u4fe1\u983c\u3067\u304d\u308b\u3082\u306e\u306b\u306a\u308a\u307e\u3059\u3002.<\/p>\n\n<pre><code>\/\/ functions.php (filemtime\u306b\u3088\u308b\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\u30d0\u30fc\u30b8\u30e7\u30cb\u30f3\u30b0)\nadd_action('wp_enqueue_scripts', function () {\n    $css = get_stylesheet_directory() .'\/dist\/style.css'\uff1b\n    $ver = file_exists($css) ?filemtime($css) : null\uff1b\n    wp_enqueue_style('theme', get_stylesheet_directory_uri() .'\/dist\/style.css', [], $ver)\uff1b\n});<\/code><\/pre>\n\n<p>\u91cd\u8981\uff1a\u30d5\u30a1\u30a4\u30eb\u540d\u306b\u30d0\u30fc\u30b8\u30e7\u30f3\u304c\u542b\u307e\u308c\u3066\u3044\u308b\u5834\u5408\u3001\u201eimmutable \u201c\u304c\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u3082\u3057\u30af\u30a8\u30ea\u30fc\u6587\u5b57\u5217\u3057\u304b\u4f7f\u308f\u306a\u3044\u306e\u3067\u3042\u308c\u3070\u3001\u30d6\u30e9\u30a6\u30b6\u306f\u66f4\u65b0\u304c\u78ba\u5b9f\u306b\u5c4a\u304f\u3088\u3046\u306b\u518d\u691c\u8a3c\u3067\u304d\u308b\u306f\u305a\u3067\u3059\u3002\u307e\u305f\u3001CDN\u304c\u4e0d\u5fc5\u8981\u306b\u591a\u304f\u306e\u4e9c\u7a2e\u3092\u4fdd\u5b58\u3057\u306a\u3044\u3088\u3046\u306b\u3001\u30d3\u30eb\u30c9\u30c4\u30fc\u30eb\u304c\u53e4\u3044\u30d5\u30a1\u30a4\u30eb\u3092\u30af\u30ea\u30fc\u30f3\u30a2\u30c3\u30d7\u3059\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002.<\/p>\n\n<h2>\u30a6\u30a7\u30d6\u30d5\u30a9\u30f3\u30c8\u3092\u30ad\u30e3\u30c3\u30b7\u30e5\u3057\u3001\u6b63\u3057\u304f\u8aad\u307f\u8fbc\u3080<\/h2>\n\n<p>\u30a6\u30a7\u30d6\u30d5\u30a9\u30f3\u30c8\u306b\u306f\u3001\u9577\u3044TTL\u3001\u6b63\u3057\u3044CORS\u30d8\u30c3\u30c0\u30fc\u3001\u30aa\u30d7\u30b7\u30e7\u30f3\u306e\u30d7\u30ea\u30ed\u30fc\u30c9\u304c\u5fc5\u8981\u3067\u3059\u3002 <strong>\u30ec\u30a4\u30a2\u30a6\u30c8\u30b8\u30e3\u30f3\u30d7<\/strong> \u304c\u8868\u793a\u3055\u308c\u306a\u3044\u3002\u540c\u3058\u30c9\u30e1\u30a4\u30f3\u306bwoff2\u30d5\u30a1\u30a4\u30eb\u3092\u7f6e\u304f\u304b\u3001Access-Control-Allow-Origin\u3092\u304d\u308c\u3044\u306b\u8a2d\u5b9a\u3059\u308b\u3002\u3055\u3089\u306b\u3001\u30d5\u30a9\u30f3\u30c8\u306e\u8aad\u307f\u8fbc\u307f\u4e2d\u306b\u30c6\u30ad\u30b9\u30c8\u304c\u3059\u3050\u306b\u8868\u793a\u3055\u308c\u308b\u3088\u3046\u306b\u3001font-display: swap\u3092\u5b9a\u7fa9\u3057\u307e\u3059\u3002\u30d5\u30a9\u30f3\u30c8\u306e\u8aad\u307f\u8fbc\u307f\u6642\u9593\u3092\u6700\u9069\u5316\u3057\u305f\u3044\u5834\u5408\u306f\u3001\u3053\u3061\u3089\u306b\u5f79\u7acb\u3064\u30d2\u30f3\u30c8\u304c\u3042\u308a\u307e\u3059\uff1a <a href=\"https:\/\/webhosting.de\/ja\/wordpress-web%e3%83%95%e3%82%a9%e3%83%b3%e3%83%88-%e3%83%ad%e3%83%bc%e3%83%89%e6%99%82%e9%96%93%e3%81%ae%e6%9c%80%e9%81%a9%e5%8c%96-serverperf\/\">\u30a6\u30a7\u30d6\u30d5\u30a9\u30f3\u30c8\u306e\u8aad\u307f\u8fbc\u307f\u3092\u9ad8\u901f\u5316<\/a>. .\u30af\u30ea\u30fc\u30f3\u306a\u30ad\u30e3\u30c3\u30b7\u30e5\u30d8\u30c3\u30c0\u30fc\u3068CDN\u3078\u306e\u30d7\u30ec\u30b3\u30cd\u30af\u30c8\u306b\u3088\u308a\u3001FOUT\/FOIT\u3092\u8457\u3057\u304f\u77ed\u7e2e\u3057\u3001\u4e00\u8cab\u3057\u305f <strong>\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0<\/strong>-\u7d50\u679c.<\/p>\n\n<h2>\u30d5\u30a9\u30f3\u30c8\u3001CORS\u3001Vary\u3092\u6b63\u3057\u304f\u8abf\u6574\u3059\u308b<\/h2>\n\n<p>\u4ed6\u306eOrigin\u304b\u3089\u306e\u30d5\u30a9\u30f3\u30c8\u306b\u306fCORS\u304c\u5fc5\u8981\u3067\u3059\u3002\u79c1\u306f <code>\u30a2\u30af\u30bb\u30b9\u5236\u5fa1-\u8a31\u53ef-\u30aa\u30ea\u30b8\u30f3<\/code> (\u4f8b\u3048\u3070\u3001\u72ec\u81ea\u30c9\u30e1\u30a4\u30f3\u3084 \u201e*\u201c\u3067\u306e\u516c\u958b\u306a\u3069\uff09\u3002 <code>\u30d0\u30ea\u30a8\u30fc\u30b7\u30e7\u30f3\uff1a\u30aa\u30ea\u30b8\u30f3<\/code>, \u30ad\u30e3\u30c3\u30b7\u30e5\u30ad\u30fc\u3092\u81a8\u5f35\u3055\u305b\u308b\u3002\u30d5\u30a9\u30f3\u30c8\u306b\u63a8\u5968\uff1a <code>public, max-age=31536000, immutable<\/code>. .\u30d7\u30ea\u30ed\u30fc\u30c9\u306f\u30d5\u30a1\u30fc\u30b9\u30c8\u30da\u30a4\u30f3\u30c8\u3092\u5411\u4e0a\u3055\u305b\u308b\u304c\u3001TTL\u306f\u5909\u66f4\u3057\u306a\u3044 - \u30d7\u30ea\u30ed\u30fc\u30c9\u3068\u30cf\u30fc\u30c9\u30ad\u30e3\u30c3\u30b7\u30e5\u306f\u4e92\u3044\u306b\u88dc\u5b8c\u3057\u5408\u3046\u3002\u307e\u305f\u3001\u5727\u7e2e\u914d\u4fe1(<code>br<\/code>\/<code>\u30b8\u30fc\u30b8\u30c3\u30d7<\/code>) a <code>Vary: Accept-Encoding<\/code> \u306f\u30d7\u30ed\u30ad\u30b7\u304c\u6b63\u3057\u304f\u5206\u96e2\u3059\u308b\u305f\u3081\u306b\u5fc5\u8981\u3067\u3042\u308b\u3002.<\/p>\n\n<h2>\u5178\u578b\u7684\u306a\u30a8\u30e9\u30fc\u30d1\u30bf\u30fc\u30f3\u3068\u8fc5\u901f\u306a\u89e3\u6c7a\u7b56<\/h2>\n\n<p>\u66f4\u65b0\u5f8c\u306b\u53e4\u3044\u30b3\u30fc\u30c9\u304c\u8868\u793a\u3055\u308c\u305f\u5834\u5408\u306f <strong>\u30d0\u30fc\u30b8\u30e7\u30cb\u30f3\u30b0<\/strong> 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<strong>\u78ba\u8a8d\u3059\u308b<\/strong>.<\/p>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2026\/01\/wordpress-caching-fehler-9834.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>\u898b\u843d\u3068\u3057\u304c\u3061\u306a\u30c7\u30a3\u30c6\u30fc\u30eb\u304c\u5927\u304d\u306a\u9055\u3044\u3092\u751f\u3080<\/h2>\n\n<ul>\n  <li><strong>Nginx add_header<\/strong> \u3092 \u201ealways \u201c\u306b\u8a2d\u5b9a\u3057\u306a\u3044\u3068\u3001304\/\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u306b\u306f\u9069\u7528\u3055\u308c\u307e\u305b\u3093\u3002\u79c1\u306f\u4e00\u8cab\u3057\u3066 \u201ealways \u201c\u3092\u8a2d\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002.<\/li>\n  <li><strong>\u671f\u9650\u5207\u308c\u5bfe\u30ad\u30e3\u30c3\u30b7\u30e5\u5236\u5fa1\uff1a<\/strong> \u201eCache-Control \u201c\u304c\u512a\u5148\u3055\u308c\u3001\u201eExpires \u201c\u306f\u53e4\u3044\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306e\u305f\u3081\u306e\u4e88\u5099\u3068\u306a\u308b\u3002\u91cd\u8907\u3001\u77db\u76fe\u3059\u308b\u60c5\u5831\u306f\u907f\u3051\u307e\u3057\u3087\u3046\u3002.<\/li>\n  <li><strong>\u30de\u30eb\u30c1\u30b5\u30fc\u30d0\u30fc\u8a2d\u5b9a\u306b\u304a\u3051\u308bETag\uff1a<\/strong> \u4e00\u8cab\u6027\u306e\u306a\u3044ETags\u306f304\u3092\u7834\u58ca\u3059\u308b\u3002\u79c1\u306fETags\u3092\u7121\u52b9\u306b\u3059\u308b\u304b\u3001\u5f31\u3044\u30d0\u30ea\u30c7\u30fc\u30bf\u3092\u4f7f\u3063\u3066 \u201eLast-Modified \u201c\u306b\u4f9d\u5b58\u3057\u3066\u3044\u308b\u3002.<\/li>\n  <li><strong>\u6700\u4f4e\u9650\u306b\u5909\u3048\u308b\uff1a<\/strong> \u201e\u300cVary: Accept-Encoding \u201c\u306f\u5727\u7e2e\u306e\u305f\u3081\u306b\u5fc5\u9808\u3067\u3001\u201eVary: Cookie \u201c\u306f\u30a8\u30c3\u30b8\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u80a5\u5927\u5316\u3055\u305b\u308b\u3002.<\/li>\n  <li><strong>SVG\u3068MIME\u30bf\u30a4\u30d7\uff1a<\/strong> \u6b63\u3057\u3044 <code>image\/svg+xml<\/code> \u3092\u8a2d\u5b9a\u3057\u3001\u9577\u3044TTL\u3092\u4e0e\u3048\u3001\u91cd\u8981\u306a\u30a2\u30a4\u30b3\u30f3\u306b\u306f\u30a4\u30f3\u30e9\u30a4\u30f3SVG\u3092\u8003\u616e\u3059\u308b\u3002.<\/li>\n  <li><strong>\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u30c1\u30a7\u30fc\u30f3\u3092\u907f\u3051\u308b\uff1a<\/strong> \u5404301\/302\u306f\u30d0\u30ea\u30c7\u30fc\u30bf\u30fc\u3092\u5931\u3044\u3001\u30ab\u30b9\u30b1\u30fc\u30c9\u306a\u3057\u3067\u30af\u30ea\u30fc\u30f3\u306aURL\u3092\u5f37\u5236\u7684\u306b200\u306b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002.<\/li>\n  <li><strong>\u30d7\u30e9\u30a4\u30aa\u30ea\u30c6\u30a3\uff0f\u30d7\u30ea\u30ed\u30fc\u30c9\u3092\u7684\u3092\u7d5e\u3063\u3066\u4f7f\u7528\u3059\u308b\uff1a<\/strong> <code>fetchpriority=\"high\"<\/code> 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